Cain't we all just git along?
I have many a caliber, and they all serve a purpose, last I checked.
I like .45 because it's easy to reload, and easy to be accurate with.
Oh, and it knocks steel plates down just fine.
I like 9mm because it's cheap to shoot (Trigger time is good.)
Easy to double tap with, and practice those rapid fire drills, and mag changes.
I like 357SIG because it's as accurate as .45 (In my hands), and cheaper to reload, because it takes el cheapo 9mm bullets.
I like 10mm because it has authority and really knocks down those pesky plates, and it's also very accurate.
I like .40 because I'd hate to see how much 10mm ammo would cost if the bulk .40 caliber bullets weren't around.
In and of itself, it's not a bad round, either.
I could go on and on, but you get the picture....